Anson c



A. c. MILLS.

STAPLE FORMING MACHINE.

APPLICATION FILED OCT-28, 1918.

Patented Oct. 21, 1919.

,is a specification. V

UNITED STATES PATENT cr mes.

ANSON c. MILLS, or JACKSON, ,MIoiiIeAN, ASSIGNOR T0 JACKSON FENCE COMPANY, or

JACKSON, MICHIGAN, A CORPOBATIONOF MICHIGAN.

STAPLE- ORMING MACHINE.

specificationof Letters Patent.

Patented Oct. '21, 1919-.

Original application filed January 11,1917, Serial No. 141,903. Divided and this application 11166. October 28, 1918. Seria1-N0. 259,958.

To all whom it may concern: 7

Be it known that I, ANsoN C. MILLS, a citizen of the United States, and resident of Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Staple- Forming Machines, of Which the following My invention relates to fence machines and particularly to a novel staple former for use in connection therewith. This application is a division of my application, Serial No. 141,903, filed Jan. 11,1917.

One of the principal objects of thi in vention is to provide staple forming-'mecha nism which shall be simpleand adaptable for rigid design so as to reduce the probability of disarrangement or breakage. It

will be understood that in the construction of a fence of the type contemplatedbyine, a number of staple forming devices are provided corresponding to the number of I strands of Wire in the fence, and thatias' economy in cost of production is dependent upon practically uninterrupted operation, the disarrangement of one staple forming mechanism increases the cost of production, due to the fact that the feeding mechanism must be stopped. For this reason; simplicity and ease of repair are essential. I

A further object is to provide a staple forming mechanism wherein the forming operation and the formed staples are con stantly exposed so that any defects are read ily observed and corrected.

A still further object is to provide staple forming mechanism wherein a supply of staples is maintained in reserve behind the staple being set or driven.

The invention will be more readily understood by reference to the accompanying drawings, wherein- Figure 1 is a transverse section through a portion of a fence machine showing my novel staple forming mechanism in elevation, the view being taken on the line 11 of Fig. 3;

Fig. 2 is a front elevation thereof;

Fig. 3 is a sectional View on the irregular line 33 of Fig. 2, and

Fig. 1 is a view of one of the staples formed by the machine of my invention.

It will be understood that the staple former herein disclosed is intended to be clined position and that the mandrel over which the staples are formed serves as a por tion of an inclined 'slideway by means'of which the staples are conveyed to the point of use One of the principal objects in the construction of the present'device is to so arrange the parts that they may occupy but small space to permit o'f'the weaving of a close mesh fence; By bending or deflecting the staple guides, the mesh of the fence may be controlled without changing the position of the staple formers. V V

In the construction herein set forth I providea support 10, and a base 11, which is "a portion of the frame of the machine.

On the supportis mounted the mandrel 12,

around which the wire staples are bent, the shear blade 13, a head 14, providing a mounting for the staple former, and a rack bar 15, which actriates the staple former. The rack bar-15, is mounted in a recess in the support 10, and held in place by means of a plate 16. The teeth of the rack bar are upon the-up er face thereof and engage a pinion 17, rigid with a shaft 18, mounted in the head 14. On the opposite end of the shaft, and mounted within a circular recess is a disk 19, best shown in Fig. 2, to one face of which disk isfixed a pin 20, having a freely rotatable sleeve 21, thereon. The pin is located near the periphery of the disk and is adapted for travel through an arc of substantially 180, then to return to its original position. Mounted immediately bethe transverse aperture 27, through which the wire passes. An aperture 28, through the support 10, and a leading tube 29, comprise the means for directing the wire A, to the proper point. It will be understood that the movable shear blade 13, is adapted for oscillation on the dowel, such movement being caused by contact with a lug 30, fixed to the lower edge of the rack bar 15. The shear blade 13, is returned to and held in normal inoperative position by means of the long coil spring 31, which is seated in a recess in the support 10. A plug 32, rests upon the top of the coil spring, this element in cooperation with the plate 16, serving to confine the spring within the recess.

The mandrel 12, is suitably secured to the support 10, with the upper inner end of the mandrel projecting into the arc of rotation of the forming finger 20, 21. The outer end of the mandrel is notched, as at 33, and in this notch a guide may be fitted.

It will be understood also that suitable means will be provided for reciprocating the rack bar and feeding staple wire in proper timed relation, but as such means form no part of this invention I have not deemed it necessary to show or describe the same.

In operation the wire A, for forming the staples, is fed upwardly through the tube 29, and is stopped by the overhanging guide or lip 14% on the head. The disk with its attached finger or pin is then rotated by reciprocation of the rack bar whereupon the terminal portion of the wire A, is bent over the mandrel into the position shown by dotted lines in Fig. 2, thereby forming a staple such as shown in Fig. 4. As the finger reaches substantially its final position, the shear 13, is actuated by contact with the projection on the rack bar and the staple is severed from the wire A. Upon the return of the parts to their normal positions, the formed staple slides down the mandrel onto the attached guide whereupon the operations are repeated. I have shown a number of staple formers in side-by-side relation in Fig. 3, this being the manner in which such devices are associated in a fence machine such as contemplated by me. It will be understood, however, that the device may be used singly to advantage. It is also obvious that certain modifications may be made therein, and such modifications as are within the scope of my claims I consider within the spirit of my invention.

I claim:

1. In a staple forming machine, the combination of a base, a mandrel, a shaft, a disk mounted on said shaft, a finger carried by said disk and rotatable in an are over the top of said mandrel, a wire cutter mounted for oscillation, and a rack bar for rotating said shaft and oscillating said outter, substantially as described.

2. In a staple forming machine, the combination of a base, a mandrel, a shaft, a disk and a pinion mounted on said shaft, a finger carried by said disk and rotatable in an are over the top of said mandrel, a pivoted wire cutter and a rack bar, said bar cooperating with said pinion to rotate said shaft, said bar having a projection adapted to contact said pivoted wire cutter and cause the severing of the wire during the wirebending operation, substantially as described.

Signed at Jackson, Michigan, this 24th day of October, 1918.

ANSON C. MILLS.

Witness G. B. HARRIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, I). C. 

